压下

Field trials on the effects of the convertional tillage, no-tillage and subsoiling methods, 4 residue coverages (0, 25 yc, 50%, 75 %) and tractor wheel compaction on water conservation are conducted for wheat crop yield by using rainfall simulation.

在模拟降雨条件下研究小麦地的传统、免耕和深松3种耕作措施和0，25％，50％和75％4种覆盖度以及拖拉机轮胎压实与非压实对土壤水分保护效果的影响。

LiNi0.95Mg0.05O2 could be formed with I(003)/I(104) ratio 1～1.1, R-factor I(006+I(102)/I(101) ratio 0.67～0.94, and (108)/(110) splitted peak, c/a ratio 4.914～4.925, in R3m space group under the conditions of 210~280 MPa pelletized powder, heating rate 2℃/min to precalcined temperature 600℃ for 9～15h,crushed and repelletized, heated till 600℃ in 5℃/min, then switched to 1℃/min till 750℃ isothermally for 15～20h all in oxygen flow.

发现以210～280 MPa对试样压片，在氧气气氛下经2℃/min升温速率升温至600℃，预烧9～15h后，再粉碎、压片以5℃/min升温至600℃之后以1℃/min升温至750℃恒温15~20h，可得I(003)/I(104)峰比值1~1.1，R-factor I(006+I(102)/I(101)峰比值0.67~0.94，并且有(108)与(110)的分裂峰，同时c/a比值4.914~4.925，属于R3m空间群的锂镍镁氧化合物。

Pressure governor valve is the use of a spring-loaded power and pressure balance theory, when the spring-loaded pressure less than atmospheric pressure and the valves closed when the pressure is greater than the spring-loaded rubber tubing stretch when the bottom of compressed air diaphragm, diaphragm the effort to promote diaphragm upward and left vavle seat blow the air flow of gas, this would piston shirking role in the pressure mobile, Selection will be emissions from valve seat, air compressors made by the then air into the gas valves and exhaust emissions is through the mouth into atmospheric air compressors idling.

调压阀的原理是利用了弹簧力与压力相平衡的原理，当弹簧的压力小于气压的时候阀关闭，当压力大于弹簧的弹力时候橡胶调压膜片下方的压缩空气对膜片的用途力，推动膜片向上拱曲离开阀座而使空气流入气腔，此时卸荷活塞在气压用途下移动，将排放阀门推离阀座，于是由空气压缩机充入气腔的空气便通过排放阀和排气口排入大气空气压缩机空转。

The shoe must be under the second stage pressure for a minimum of 12 seconds,under the correct pressure

在正确的压力下，压底时间应从第二个压底过程开始算起至少12秒

New molecular parameters of 18 alcohol-amines were obtained by fitting saturated vapor pressures and liquid densities at different temperatures.The overall average deviations of saturated vapor pressure and liquid density were only 0.94% and 0.88% respectively.

通过关联不同温度下醇胺的饱和蒸气压和液体体积得到了18种醇胺流体的分子参数，新方程计算的饱和蒸气压和液体密度总的平均误差分别为0.94%和0.88%。

Along with drastic competition, the corporations need to comprehend the distributing rale of stress and strain of twin cone rolls axial mill in working condition and execute the structure optimization based on the results.

面对日益激烈的市场竞争，企业迫切地需要了解双锥辊辗压机工作状态下的应力应变分布规律，并在此基础上对双锥辊辗压机的结构进行优化。

Based on space-charge effect,I choose different diode model when diodes have different base doping concentration,analyzing the main factors impacting temperature coefficient of the diode,testing diodes with different angle lap,analysis of the blocked characteristics of diode in high temperature.

快恢复二极管的生产中发现大量的反向耐压呈现负温度系数的管芯，本文从空间电荷效应的角度，对基区掺杂浓度不同的管芯采用不同的二极管模型，分析管芯在高温情况下影响二极管反向耐压主要因素；并且对不同磨角的管芯进行测试，分析对二极管高温阻断特性的影响。

Under spraying humidification state, the parameters of JYPW-1 spraying axial fans for textile enterprises such as flow, total pressure, efficiency, shaft power and acoustic power level changing with water-air ratio were tested, and the performance parameter curve changing with water-air ratio was obtained. The approximate formula of its pneumatic performance in different water-air ratio condition were deduced which can be referenced for of selection and project application.

在喷雾加湿工况下，对纺织空调系统所用的JYPW-1型喷雾轴流通风机的流量、全压、全压效率、轴功率和比A声级噪声等性能参数随喷淋水气比的变化进行了测试，得到了喷雾风机性能参数随水气比变化的曲线，并整理出喷雾风机在不同水气比时，其气动性能的近似计算公式，可供喷雾风机选型和工程应用时参考。

On the foundation of Betti s theorem,the constitutive relation of multi-crack rockmass which considers the effect of crack-closure is developed in this paper.

本文从贝蒂定理出发，考虑裂隙在压剪应力作用下的闭合效应，推导出有序多裂隙岩体的本构方程，同时采用数学弹性力学的方法，精确推导出传压系数的理论公式，并对传剪系数加以分析。

According to the permeability test and self-mastery "L" type model test, the coefficients of permeability in horizontal and vertical direction at different degree of compactions were obtained. Based on the Darcy law, calculating formula for the model was deduced.

通过室内渗透试验、自制&L&型相关模型试验测得在不同压实度下水平向和垂直向的渗透系数，并根据达西定律等相关理论推倒出适用于该模型的计算公式，得到水平向和垂直向渗透系数随着压实度的增加逐渐减小，验证了该方法测定渗透系数的可行性。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。